From 125a1a2937d77fab775647d5df6f78387bb8dc42 Mon Sep 17 00:00:00 2001
From: hackademix
Date: Thu, 25 Jul 2019 22:15:40 +0200
Subject: Work-around for browser.i18n.getMessage() API in content scripts
 giving away browser's real locale (Tor issue #31287).

---
 src/content/content.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/content/content.js')

diff --git a/src/content/content.js b/src/content/content.js
index dc493c2..e7fb331 100644
--- a/src/content/content.js
+++ b/src/content/content.js
@@ -1,6 +1,16 @@
 'use strict';
 // debug = () => {}; // REL_ONLY
-var _ = browser.i18n.getMessage;
+function _(...args) {
+  let fakeLang = navigator.language === "en-US" &&
+                  browser.i18n.getUILanguage() !== "en-US";
+  return (_ = (template, ...substitutions) => {
+        let [key, defTemplate] = template.split("|");
+        return fakeLang
+          ? (defTemplate || key).replace(/\$([1-9])/g,
+              (m, p) => substitutions[parseInt(p) - 1] || "$" + p)
+          : browser.i18n.getMessage(template, ...substitutions);
+      })(...args);
+}
 
 function createHTMLElement(name) {
   return document.createElementNS("http://www.w3.org/1999/xhtml", name);
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